src/mainboard/amd/union_station/BiosCallOuts.c

/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2011 Advanced Micro Devices, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "agesawrapper.h"
#include "amdlib.h"
#include "BiosCallOuts.h"
#include "heapManager.h"
#include "SB800.h"
#include <northbridge/amd/agesa/family14/dimmSpd.h>

STATIC BIOS_CALLOUT_STRUCT BiosCallouts[] =
{
	{AGESA_ALLOCATE_BUFFER,			BiosAllocateBuffer },
	{AGESA_DEALLOCATE_BUFFER,		BiosDeallocateBuffer },
	{AGESA_DO_RESET,			BiosReset },
	{AGESA_LOCATE_BUFFER,			BiosLocateBuffer },
	{AGESA_READ_SPD,			BiosReadSpd },
	{AGESA_READ_SPD_RECOVERY,		BiosDefaultRet },
	{AGESA_RUNFUNC_ONAP,			BiosRunFuncOnAp },
	{AGESA_GNB_PCIE_SLOT_RESET,		BiosGnbPcieSlotReset },
	{AGESA_HOOKBEFORE_DRAM_INIT,		BiosHookBeforeDramInit },
	{AGESA_HOOKBEFORE_DRAM_INIT_RECOVERY,	BiosHookBeforeDramInitRecovery },
	{AGESA_HOOKBEFORE_DQS_TRAINING,		BiosHookBeforeDQSTraining },
	{AGESA_HOOKBEFORE_EXIT_SELF_REF,	BiosHookBeforeExitSelfRefresh },
};

AGESA_STATUS GetBiosCallout (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
{
  UINTN i;
  AGESA_STATUS CalloutStatus;
  UINTN CallOutCount = sizeof (BiosCallouts) / sizeof (BiosCallouts [0]);

  CalloutStatus = AGESA_UNSUPPORTED;

  for (i = 0; i < CallOutCount; i++)
  {
    if (BiosCallouts[i].CalloutName == Func)
    {
      CalloutStatus = BiosCallouts[i].CalloutPtr (Func, Data, ConfigPtr);
      return CalloutStatus;
    }
  }

  return CalloutStatus;
}

/*  Call the host environment interface to provide a user hook opportunity. */
AGESA_STATUS BiosHookBeforeDQSTraining (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
{
  return AGESA_SUCCESS;
}
/*  Call the host environment interface to provide a user hook opportunity. */
AGESA_STATUS BiosHookBeforeDramInit (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
{
  AGESA_STATUS      Status;
  UINTN             FcnData;
  MEM_DATA_STRUCT   *MemData;
  UINT32            AcpiMmioAddr;
  UINT32            GpioMmioAddr;
  UINT8             Data8;
  UINT16            Data16;
  UINT8             TempData8;

  FcnData = Data;
  MemData = ConfigPtr;

  Status  = AGESA_SUCCESS;
  /* Get SB MMIO Base (AcpiMmioAddr) */
  WriteIo8 (0xCD6, 0x27);
  Data8   = ReadIo8(0xCD7);
  Data16  = Data8<<8;
  WriteIo8 (0xCD6, 0x26);
  Data8   = ReadIo8(0xCD7);
  Data16  |= Data8;
  AcpiMmioAddr = (UINT32)Data16 << 16;
  GpioMmioAddr = AcpiMmioAddr + GPIO_BASE;

  Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178);
  Data8 &= ~BIT5;
  TempData8  = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG178);
  TempData8 &= 0x03;
  TempData8 |= Data8;
  Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, TempData8);

  Data8 |= BIT2+BIT3;
  Data8 &= ~BIT4;
  TempData8  = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG178);
  TempData8 &= 0x23;
  TempData8 |= Data8;
  Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, TempData8);

  Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179);
  Data8 &= ~BIT5;
  TempData8  = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG179);
  TempData8 &= 0x03;
  TempData8 |= Data8;
  Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, TempData8);

  Data8 |= BIT2+BIT3;
  Data8 &= ~BIT4;
  TempData8  = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG179);
  TempData8 &= 0x23;
  TempData8 |= Data8;
  Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, TempData8);

  switch(MemData->ParameterListPtr->DDR3Voltage){
    case VOLT1_35:
      Data8 =  Read64Mem8 (GpioMmioAddr+SB_GPIO_REG178);
      Data8 &= ~(UINT8)BIT6;
      Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, Data8);
      Data8 =  Read64Mem8 (GpioMmioAddr+SB_GPIO_REG179);
      Data8 |= (UINT8)BIT6;
      Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, Data8);
      break;
    case VOLT1_25:
      Data8 =  Read64Mem8 (GpioMmioAddr+SB_GPIO_REG178);
      Data8 &= ~(UINT8)BIT6;
      Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, Data8);
      Data8 =  Read64Mem8 (GpioMmioAddr+SB_GPIO_REG179);
      Data8 &= ~(UINT8)BIT6;
      Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, Data8);
      break;
    case VOLT1_5:
    default:
      Data8 =  Read64Mem8 (GpioMmioAddr+SB_GPIO_REG178);
      Data8 |= (UINT8)BIT6;
      Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, Data8);
      Data8 =  Read64Mem8 (GpioMmioAddr+SB_GPIO_REG179);
      Data8 &= ~(UINT8)BIT6;
      Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, Data8);
  }
  return Status;
}

/*  Call the host environment interface to provide a user hook opportunity. */
AGESA_STATUS BiosHookBeforeDramInitRecovery (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
{
  return AGESA_SUCCESS;
}

/*  Call the host environment interface to provide a user hook opportunity. */
AGESA_STATUS BiosHookBeforeExitSelfRefresh (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
{
  return AGESA_SUCCESS;
}
/* PCIE slot reset control */
AGESA_STATUS BiosGnbPcieSlotReset (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
{
  AGESA_STATUS Status;
  UINTN                 FcnData;
  PCIe_SLOT_RESET_INFO  *ResetInfo;

  UINT32  GpioMmioAddr;
  UINT32  AcpiMmioAddr;
  UINT8   Data8;
  UINT16  Data16;

  FcnData   = Data;
  ResetInfo = ConfigPtr;
  // Get SB800 MMIO Base (AcpiMmioAddr)
  WriteIo8(0xCD6, 0x27);
  Data8 = ReadIo8(0xCD7);
  Data16=Data8<<8;
  WriteIo8(0xCD6, 0x26);
  Data8 = ReadIo8(0xCD7);
  Data16|=Data8;
  AcpiMmioAddr = (UINT32)Data16 << 16;
  Status = AGESA_UNSUPPORTED;
  GpioMmioAddr = AcpiMmioAddr + GPIO_BASE;
  switch (ResetInfo->ResetId)
  {
  case 4:
      switch (ResetInfo->ResetControl)
      {
      case AssertSlotReset:
        Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG21);
        Data8 &= ~(UINT8)BIT6 ;
        Write64Mem8(GpioMmioAddr+SB_GPIO_REG21, Data8);   // MXM_GPIO0. GPIO21
        Status = AGESA_SUCCESS;
        break;
      case DeassertSlotReset:
        Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG21);
        Data8 |= BIT6 ;
        Write64Mem8 (GpioMmioAddr+SB_GPIO_REG21, Data8);       // MXM_GPIO0. GPIO21
        Status = AGESA_SUCCESS;
        break;
      }
      break;
  case 6:
      switch (ResetInfo->ResetControl)
      {
      case AssertSlotReset:
        Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG25);
        Data8 &= ~(UINT8)BIT6 ;
        Write64Mem8(GpioMmioAddr+SB_GPIO_REG25, Data8);   // PCIE_RST#_LAN, GPIO25
        Status = AGESA_SUCCESS;
        break;
      case DeassertSlotReset:
        Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG25);
        Data8 |= BIT6 ;
        Write64Mem8 (GpioMmioAddr+SB_GPIO_REG25, Data8);       // PCIE_RST#_LAN, GPIO25
        Status = AGESA_SUCCESS;
        break;
      }
      break;
  case 7:
      switch (ResetInfo->ResetControl)
      {
      case AssertSlotReset:
        Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG02);
        Data8 &= ~(UINT8)BIT6 ;
        Write64Mem8(GpioMmioAddr+SB_GPIO_REG02, Data8);   // MPCIE_RST0, GPIO02
        Status = AGESA_SUCCESS;
        break;
      case DeassertSlotReset:
        Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG02);
        Data8 |= BIT6 ;
        Write64Mem8 (GpioMmioAddr+SB_GPIO_REG02, Data8);       // MPCIE_RST0, GPIO02
        Status = AGESA_SUCCESS;
        break;
      }
      break;
  }
  return  Status;
}